Shrek in Fiona se vrneta z medenih tednov. Njuno idilično življenje zmoti vabilo Fioninih staršev, ki v čast hčerine poroke pripravljata ples. Ko po napornem potovanju pridejo na cilj, naletijo na vse prej kot topel sprejem. Kralj in kraljica ne moreta verjeti svojim očem, ko zagledata svojega zeta in hčerko. Shrek in Fiona ne vesta, da sta s svojo poroko pokvarila kraljeve načrte. Kralj je sklenil pakt z dobro vilo, da se bo Fiona poročila z njenim sinom, lepim princem. Zato kralj pod pritiski dobre vile najame poklicnega morilca Obutega mačka.
Shrek has rescued Princess Fiona, got married, and now is time to meet the parents. Shrek, Fiona, and Donkey set off to Far, Far Away to meet Fiona's mother and father. But not everyone is happy. Shrek and the King find it hard to get along, and there's tension in the marriage. It's not just the family who are unhappy. Prince Charming returns from a failed attempt at rescuing Fiona, and works alongside his mother, the Fairy Godmother, to try and find a way to get Shrek away from Fiona.